The guy is full of BS, he won't show you the other side of the does head. It's not going to vacuum it's eye's out and kill it instantly.

If you watch the video close, the deer is looking to the left of the shooter, when he picks up the head the head is pointed the other way, that would be the exit side if it was hit. Additionally if you watch the retakes it looks like the bullet path is left and high. I think the guy is being truthful about not actually hitting the deer.